As was said in an earlier post, it’s possible to grow black raspberries in a container. To do it, you need a 25-35 gallon container, a tomato cage, and frequent watering.
As seen in the picture above, the primocanes – new shoots – stand around 30 to 32 inches high. It’s now time to pinch off (head) the tips of the new canes. Tipping is done by removing the top 2 to 3 inches of new shoots as they develop. See photo below.
This will induce growth of side branches and results in plants that are stocky and self-supporting and have a large amount of fruit-bearing wood. See photo below.
As you know, black raspberry canes grow on a 2 years period but sometimes Mother Nature permits a new black raspberry cane to grow and bear fruits on the same year. This is a situation that happens to me every year.